Hose clamp



Jan. 18. 1927.

v N; scHwARrz HOSE CLAMP Filed April sol 192e ATTORNEY Patented Jan. 18, 1927.

Unirse s'rarssA NIELL SCHWARTZ, OF BROOKLYN, NEWX'ORK.

HOSE CLAMP.

Application filed April 30,

rl his invention relates to improvements in hose clamps.

The primary object of the invention resides in a hose clamp especially adapted for use in securely holding the attachment end of a hose or tube in sealing engagement with the nipple of a gas fixture or gas appliance for the purpose of preventing the accidental escape of gas therefrom, and which escape of gas often results in gas asphyxiation of the occupants of a room or dwelling, and sometimes causes fire and eX- plosion with the resultant damages.

Another object of the invention resides in a hose clamp which may be used for `various other purposes such as an emergency patch for temporarily sealing a leak in a fire hose, should the same accidentally become punct-ured or fractured.

A further object is to provide a hose clamp which may be easily and quickly applied to hoses of various diameters, and which clamp may be initially adjusted to the approximate size to receive the hose and after insertion thereon, the saine may be finally adjusted to securely clamp the hose to the nipple of a gas fixture.

ith these and other objects in view, the invention resides in certain novel construction and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claims, and are illustrated in the accompanying drawing, in which Figure 1 is a perspective view of my invention showing the same in position for connecting the end of a gas tube with the nipple of a gas fixture.

Figure 2 is a vertical longitudinal sectional. view therethrough.

Figure 3 is a vertical transverse sectional view on the line 2-2 of Figure 1.

' Figure t is a similar view on the line if-4 of Figure 1.

Figure 5 is a side elevation of a modified form of my invention.

Figure 6 is a modified form of bearingr bracket and trunnions for the cam levers.

Referring more particularly to the drawing, the reference numerals 10 and 11 respectively designate a pair of semi-cylindri 1926. Serial No. 195,822.

metal and have their inner faces provided with yieldable linings 13.

The section 10 is provided with a pair of opposed spaced ears 14 which extend beyond the longitudinal edges of the section at one end thereof. The ears 14 are vrespectively provided with elongated slots 15 for the reception of outwardly extending lugs 1-6 projecting from the longitudinal edges of the section 11 adjacent one end thereof. It will be seen that the walls of the slots and the lugs co-act to provide a guide means for bringing the sections in alignment and for preventing the longitudinal creeping of one section with respect to the other. sired, the lugs may serve as pivots for permitting one of the sections to be swung with respect to the other. Y

Adjacent the other end of the section 11, there is provideda pair of opposed brackets 1S) which are slightly offset with respect to the longitudinal edges of the section to permit the section 10 to snugly fit therebetween. The brackets are provided with vertical slots 18, from which spaced aligned branch slots 19 extend, and which walls of the slots 19 serve as seats for the trunnions 20 extending from opposite sides of a cani lever 21. It will be Is-een that the slots 18 establish communication between the slots 19 to permit the cam lever to be pivoted on various planes. j

In 'the drawing, I have shown my improved hose clamp as applied to the attach ment end 22 of a flexible gas tube or hose 23, andv which end 22 telescopes the nipple 24 of a gas jet 25. wWhen applying the clamp, the same is adjusted to permit the sections to separate in order to freely Vreceive the attachment end 22. rlhe final adjustment is obtained by moving the trunnions of the cam lever into the desired aligned slots 20, with the Cam lever in aV raised position. After the clamp has been applied, the Cain lever 21 is swung downward so that the same comes in pressing engagement with the section 10, thereby causing` the sections 10 and 11 tol be drawn toward each other, and .in clamping engagement with the attachment end of the hose. This clamping action tends to hold the attachment end of the hose in sealing engagement with the nipple 24 and prevents the accidental escape of gas from the joint.

In Figure of the drawing, I have shawn If dea slightly modified form ot my invention, in which the ears 11i of the section l0 are disposed midway between the lends of the section for the reception of lugs l5 carried b y the sections 1l midvvay between the ends ot said section. Pairs o1 spaced brackets 17 are provided adjacent the ends o'l' the section ll and Which brackets 17 are provided with aligned hooks 192L for receiving the trunnions of the respective cam levers 21a. It will be seen that in this 'form ot the invention, I provide clamping means at opposite ends ot the sections whereby an even pressure may be maintained in hose clamps for the purpose of serving' as patches in tire hose. .I have also shown in this form a moditied construction oli' supporting bracket for the cam levers, which permits the levers to be removed from their bearings when obtaining the final adjustment o't the clamping sections.

In Figure 6, l have .shown a turther modilied form of bearing 'tor the cam lever in which the bracket 19B is slotted as at 18]". One of the walls ot the slot is provided with teeth 19C Jfor engagement by ratchet teeth 20B provided on the pintle 20C ot the cam lever. A dat spring 26 serves to hold the ratchet teeth on the pintle in co-aeting engagement with the teeth 20B.

lVhile I have described what I deem to be the most desirable embodiment ot' my invention, lit is obvious that many ol the details may .be varied without in any Way departing from the spirit oit my invention, and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the Whole of my invention limited only by the appended claims.

What is claimed asY new is l. A hose clamp comprising a pair of separate co-acting curved sections adapted to be iittedI over a hose, eo-acting meansl on said sections for preventing longitudinal movement of said sections, one with respect to the other, and clamping means carried by one of said sections and engageable with the other of said sections 'lor holding the sections in a clamped position around a hose, said clamping means including opposed spaced brackets having a plurality et aligned seats therein, and a cam lever having trnnnions for engagement with the respective aligned seats for pivotally'mounting said cam lever on said brackets at various ele vations.

Q. A- hose clamp comprising a pair ot separable curved co-acting sections, ears provided on one ot said sections and having` slots therein, lags extending trom the other of saidsections and movable in the slots ol the respective ears, opposed brackets on said last mentioned section, and a cam lever pivoted in said brackets and movable inte pressin'g engagement with said lirfgt mentioned section.

A hose clam-p comprising a pair et separable curved co-acting sections, having yieldable linings on the inner 'faces thereof, ears provided on one of said sections and having slots therein, lugs extending from the other et said sections and movable in the slots ol" the respective ears, opposed brackets on said last mentioned section, aligned seats in said opposed brackets and a cam lever having tr innions forV engagement With any of the aligned seats and movable into pressing engagement with said lirst mentioned section.

In testimony Whe-reef I have affixed my signa-ture;

NIELL SG1-HV ARTZ. 

